Trump’s Iran war has cost Americans at least $11bn already. And that’s just the start | Arwa Mahdawi

The Guardian US News
by Arwa Mahdawi
March 17, 2026
3 min read

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The Bottom Line

Trump's Iran military operations have cost U.S. taxpayers at least $11.3 billion so far, with costs likely to grow.

How This Affects You

American taxpayers are funding at least $11.3 billion in military operations against Iran, with final costs potentially much higher as the conflict continues and equipment replacement costs mount.

AI Summary

The Trump administration's military operations against Iran have cost American taxpayers at least $11.3 billion, according to columnist Arwa Mahdawi, with that figure excluding expenses for facility repairs or replacing destroyed equipment. The costs have mounted as U.S. and Israeli attacks on Iran expanded into an Israeli ground invasion of Lebanon, escalating regional tensions significantly. House Speaker Mike Johnson stated on March 5 that the U.S. is "not at war" and has "no intention of being at war," creating a semantic and legal disconnect that some lawmakers, including Senator Cynthia Lummis, dispute. The lack of clarity on whether the conflict constitutes a formal war raises questions about congressional war powers and the full financial scope of the operation, which could grow substantially as military operations continue.

What's Being Done

Some lawmakers, including Senator Cynthia Lummis, are disputing the administration's claim that the U.S. is not at war, raising questions about congressional war powers oversight.

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